Improvement in the manufacture of artificial stone



UNITED STATES PATENT OFFICE."

LLEWELLYN L. LEATHERS AND, GHAPPELLET, OF OAKLAND, CAL.

- mpnovsmsm' m m: MANUFACTURE or ARTIFICIAL cross.

Specification Iorming part of Patent No March 178.307, dated June 6, 1876; application filed 1a, 1676.

To all whom it may concern: I

- Be it known that we, LLEWELLYN L. LEATH- naa and- FELIX CHAPPELLET, of Oakland, Alameda county, State of California, have invented an Improved Artificial Stone; and we do hereby declare the following description and accompanying drawings are sufficient to enable any person skilled in the art or science to which it most nearly appertains to make and has our said invention without further invention or experiment.

0hr invention relates to a-novel combination of materials forcompounding and producing an artificial stone of superior strength and durability.

Tomake our artificialstone we first make a sa onaceons solution or compound in the following manner: To ten pounds of hard-wood usheswo add eight gallons of water, EnrLH t em together so as to produce a weak' FE; To this lye wthen-add eight pounds oi some fatt' oil or resinous substance and boil maieratciy for eight Hours, occasiorially m ing a small quantity of water so as to preserve a uniform quantity oi eight gallons and prevent concentration. We then add eight gallons longer, when we stranrthehquld oil through a fine sieve into another vessel, allow it to cool, and thenclose tight for use. For a fatty substance we prefer to .use lard, as it has of hot water and boil for half-hour given us the best resultbut any of the oily or fatty substances used in the manufacture of son is can be used. We then (lissolie one poun of alum in twenty-eight gallons of clear cold water and add two gallons of the above-described sa onaceous li uid, and thoroughly mix them by stirri'n'g' Having thoroughly mixed four parts of clean sharp so! id or sand and lgravel, with one part of go i cemcnt w 1e ry, we add a suificiont quantify oi the solution to dampen it, so that it can be properly Empe(l l'rl""thensual way. We are thus able to produce an artificial stone of great durability and hardness at a very slight expense for material.

Having thusdescribed our invention, what we claim, and desire to secure by Letters Patcut is- 4 11 The process above described for making a saponaceous mixture or solution for the purpose specified.

2. An artificial stone composed of sand and cement moistened with a saponaceous mixture or solution, before tamping, in about the pro portions hereinbeiore named, substantially as and for" the purpose above described.

LLEWELLYN L. LEATHERS. FELIX OHAPPELLET. Witnesses:

GEO. H. STRONG, J 01m L. Booms.

:xammer 

